EVA sockliner can be easily removed and replaced by a medical orthotic, if that is preferred.Personal Heel Fit system provides a glove-like fit on your heel, shaping itself to meet the natural form of your foot.Solyte midsole provides ultimate cushioning and durability. Solyte foam produces a 10mm heel gradient, limiting stress to your lower limbs by balancing your weight forward.Injected PU outsole boasts a 4-2 strategic stud arrangement for excellent grip.